What is the thoracic-knee position? The thoracic-knee position requires the patient to kneel on the bed, lift the buttocks, and place the head on the bed as low as possible, so that the buttocks and anus can be fully exposed. The main scope of application of the thoracic-knee position: 1, the examination and treatment of anorectal diseases, such as anal hemorrhoids, anal fissures, rectal polyps, rectal tumors, etc., when doing the examination, especially for anal diagnosis, the thoracic-knee position will be used. 2, the correction of retroversion of the uterus and fetal malposition can be used in the thoracic-knee position. 3, in promoting the recovery of the uterus, the thoracic-knee position can also be used. 3. The chest and knee position can also be used to promote the recovery of the uterus.